### just import everything from sub-modules

import os

d = os.path.split(__file__)[0]
files = []
for f in os.listdir(d):
    if os.path.isdir(os.path.join(d, f)):
        files.append(f)
    elif f[-3:] == '.py' and f != '__init__.py':
        files.append(f[:-3])
    
for modName in files:
    mod = __import__(modName, globals(), locals(), fromlist=['*'])
 